Vaporizer



UNITED STATES PATENT OFFICE.

JOSEPH F. FRIEND AND PTER R. FRIEND, OF KENOSI-IA, WISCONSIN.

VAPORIZER.

Application filed April 28, 1919.

To all whom t may concern.'

Be it known that we, JOSEPH F. FRIEND and PETER R. FRIEND, citizens of the United States, residing at Kenosha, in the county of Kenosha and-ttate of Wisconsin, have invented new and useful Improvements in Vaporizers, of which the following is a specification.

This invention relates to vaporizers for internal combustion engines, the object in view being to provide a device applicable to any engine whether used in connection with an automobile, motor truck, motor boat, flying machine or a stationary engine.

'Ihe broad object of the invention is to provide a device which will form what is known as a hot spot between the carbureter and the combustion chamber of the engine thereby enabling the inflowing fuel to be broken up and vaporized and otherwise brought into a highly combustible condition before it is inducted into the combustion chamber of the engine.

lilith the above and other objects in View, the invention consists in the novel construction, combination and arrangement herein,

fully described, illustrated and claimed.

In the accompanying drawing Figure 1 is a vertical sectional view illustrating the vaporizer in its applied relation to the intake pipe or manifold of an internal combustion engine.

Fig. 2 is also a vertical section through the same looking at a right angle to Fig. 1.

Fig. 3 is a plan view of the vaporizing attachment, showing the relation of the exhaust pipe of the engine thereto.

Referring to the drawings 1 designates the carbureter of an internal combustion engine, said carburetor being conventionally shown and being arranged at the receiving end of the intake pipe or manifold 2 of said engine.

In carrying out the present invention I provide a casing 3 which is preferably clamped between the flange 4 of the carbureter and the adjacent flange 5 of the intake pipe or manifold 2, said parts being secured together by means of bolts or other fastening members 6.

Extending centrally through the casing 3 and at a right angle to the longitudinal axis of the intake pipe or manifold 3 and also at a right angle to the normal direction of flow of the incoming mixture, is a Specification of Letters Patent.

Patented May 12, 1921.

serial No. 293,083. l

pipe or'connection 7 to one end of whichis ordinarily attached an exhaust pipe 8 or a branch of the exhaust pipe of the engine for the purpose of conducting the hot exhaust gases through the intake manifold for the purpose of heating the incoming mixture and producing a more highly combustible mixture for the engine.

The pipe or tube 7 contains a resistance coil 9 connected by suitable wire 10 with a source of electrical energy such as a'batterv 11 'which is shown as grounded at 12. switch 13 is arranged in the circuit so as to control the iiow of electrical energy to the resistance coil 9. In the use of the device, preparatory to starting the engine in cold weather, the switch 13 is closed thereby causing the resistance coil 9 to become heated. In a short space oftime, the wall of the connection or tube 7 becomes highly heated and therefore when the engine is started,

the vapor passing from the carbureter to the engine is highly hea-ted and conducted to the engine in proper condition for ignition. As soon as the engine has run a suflicient length of time to become heated, the switch 13 1s opened and current is cut out from the resistance coil 9, the pipe or connection 7 being thereafter heated by the exhaust gases from the engine conducted thereto by means of the exhaust pipe 8.

The device hereinabove described will be found very useful to motorists particularly in startin their cars in cold weather and is made in t e form of an attachment so that it may be readily combined with the necessary part of machines already in use, the device being fastened in place between the carbureter and the receiving end lof the intake pipe ormanifold, as clearly shown in the drawing.

What we claim is rfhe combination with a carbureter having an attaching flange and an intake manifold having a flange, of a casing arranged snugly etween said first and second named flanges and securely attached to the same, said casing having its upper and lower sides formed with passages in alinement with said carbureter and said intake manifold, an exhaust conveying pipe extending transversely through said casing between the upper and lower sides of the same and intersecting the longitudinal axis of said intake manifold, saidexhaust conveying pipe being provided with an attaching flange secured to seid casing, and :L heating coil arranged in tubular formation Within said exhaust conveying pipe in spaced relation to the side Walls of the same and extending` longitudinally of the exhaust pipe to permit of the ee flow of the exhaust through the pipe, said heating coil intel'- secting the longitudinal axis of said intake manifold. 1 0

In testimony whereof We aliX our signatures. JOSEPH F. FRIEND.

PETER R. FRIEND* 

